functionderDensity_derh_derP_derh
der(Density derivative w.r.t enthalpy) computation for all fluids (inputs: P, h, der(P), der(h), fluid)
Information
## Copyright © EDF 2002 - 2025 ## ThermoSysPro Version 4.2
Inputs
| Type | Name | Default | Description |
|---|---|---|---|
| Units.SI.AbsolutePressure | P | Pressure (Pa) | |
| Units.SI.SpecificEnthalpy | h | Specific enthalpy | |
| Integer | fluid | <html>Fluid number: <br>1 - Water/Steam <br>2 - C3H3F5 <br>3 - FlueGases <br>4 - MoltenSalt <br>5 - Oil <br>6 - DryAirIdealGas <br>7 - WaterSteamSimple </html> | |
| Integer | mode | IF97 region - 0:automatic computation | |
| Real | Xco2 | CO2 mass fraction | |
| Real | Xh2o | H2O mass fraction | |
| Real | Xo2 | O2 mass fraction | |
| Real | Xso2 | SO2 mass fraction | |
| Real | der_P | Pressure time derivative (J/(kg*s)) | |
| Real | der_h | Specific Enthalpy time derivative (J/(kg*s)) | |
| Real | der_Xco2 | 0 | CO2 mass fraction |
| Real | der_Xh2o | 0 | H2O mass fraction |
| Real | der_Xo2 | 0 | O2 mass fraction |
| Real | der_Xso2 | 0 | SO2 mass fraction |
Outputs
| Type | Name | Default | Description |
|---|---|---|---|
| Real | der_ddhp | Time derivative of Density derivative by enthalpy |